I should note that on this test (which I do not accept accurately reflects the current state of the law) I would not consider that the proper exercise of my discretion favoured a discharge.
8 The passage cited above in Knape needs to be read in the light of more recent authorities. Gibbs J (as he then was) in Maric referred with approval to the observations of Sachs LJ who delivered the judgment of the Court in Regina v Weaver [1968] 1 QB 353:
"It is very far from being the rule that in every case where something of this nature gets into evidence through inadvertence the jury must be discharged." (at p 360)
9 In Crofts v The Queen (1996) 186 CLR 427 at 440, Toohey, Gaudron, Gummow and Kirby JJ observed:
"No rigid rule can be adopted to govern decisions on an application to discharge a jury for an inadvertent and potentially prejudicial event that occurs during a trial. The possibilities of slips occurring are inescapable. Much depends upon the seriousness of the occurrence in the context of the contested issues; the stage at which the mishap occurs; the deliberateness of the conduct; and the likely effectiveness of a judicial direction designed to overcome its apprehended impact."
10 This mishap occurred towards the close of the ninth day of the trial when the Crown case was drawing to a close. The evidence emerged as the result of a misunderstanding. No question of deliberateness, in the context in which their Honours referred to it in Crofts, arises. When Sergeant Dagwell gave the evidence neither the Crown Prosecutor nor Mr Corr betrayed any obvious reaction to it. Mr Corr waited for a suitable interval before making his application. In this way, no added impact was given to the evidence at the time it emerged.
11 Evidence has been led (without objection) that, at the time of the accused's arrest, the police located some marijuana and cannabis resin in his unit. In an electronically recorded interview with police the accused readily volunteered that he had been smoking marijuana the previous day. Mr Corr elicited from the witness, Julieann House, that she had supplied the accused with some heroin a matter of hours before the killing. The issue of the accused's intoxication (both alcohol and drug induced) is a live one in this case. It is for this reason, as I apprehend it, that no objection was taken to the evidence of the accused's possession of marijuana and cannabis resin. Against this background, I consider the accidental disclosure (that on a prior occasion the accused had been arrested) is not likely to occasion prejudice such that the continuation of the trial would be unfair.
12 The evidence goes no higher than that the accused had been arrested on an occasion prior to 20 June 1998. There is no evidence that he has been convicted of anything.
13 I consider that in the course of my summing up I can effectively deal with this evidence (instructing the jury to put it out of their minds) at the same time as I direct them to put out of their minds the evidence concerning the accused's possession of cannabis resin and cannabis leaf save in so far as they find it relevant to the question of his ingestion of cannabis on the day preceding the subject events.
14 In The Queen v Glennon (1992) 173 CLR 592, Mason CJ and Toohey J said (at p 603):
"The possibility that a juror might acquire irrelevant and prejudicial information is inherent in a criminal trial. The law acknowledges the existence of that possibility but proceeds on the footing that the jury, acting in conformity with the instructions given to them by the trial judge, will render a true verdict in accordance with the evidence. As Toohey J observed in Hinch v Attorney-General for State of Victoria (1987) 164 CLR 15 at 74, in the past, too little weight may have been given to the capacity of jurors to assess critically what they see and hear and their ability to reach their decisions by reference to the evidence before them ."
15 In the course of the evidence of Detective McCloskey, Mr Corr objected to the contents of a conversation between the Detective and the accused relating to the drugs located at the premises being given. That objection was upheld and I directed the jury that it was self-evident the accused in this case was charged with murder and that the fact that he may or may not have been spoken to about the possession of cannabis was of no concern and should be put out of their minds. As I gave this short direction, a number of the jurors nodded affirmatively.
16 I consider I should proceed upon the basis that this jury will, in conformity with the direction I propose giving them, put out of their consideration their knowledge that, on an occasion prior to 20 June 1998, the accused had been arrested.
17 I did not consider that it was appropriate for me to give a direction to the jury concerning this evidence at the time when it was given by Sergeant Dagwell. To do so would have risked giving the evidence prominence which, in my view, it had not otherwise acquired. I raised this matter with both the Crown Prosecutor and Mr Corr. Neither invited me to give a direction at this stage in the trial.
18 For the above reasons, I declined the application to discharge the jury.
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